/* 
 * Component: Header
 * Migrated to Vanilla CSS + Tokens (Tailwind-Ready)
 */

.app-header {
    color: var(--color-text-main);
    background-color: var(--color-bg-body);
    padding: 20px 0;
    transition: all 0.5s;
    z-index: 997;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
}

.app-header__container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
}

/* Logo */
.app-header__logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    gap: var(--space-xs);
}

.app-header__logo img {
    max-height: 40px;
}

.app-header__logo h1 {
    font-size: 30px;
    margin: 0;
    font-weight: 700;
    color: var(--color-text-heading);
    font-family: var(--font-family-heading);
    white-space: nowrap;
}

/* Keep "CSP Accountants" on one line on mobile */
@media (max-width: 480px) {
    .app-header__logo h1 {
        font-size: 22px;
    }
}

/* Navigation - Desktop */
.app-nav {
    display: none;
    /* Hidden on mobile by default */
}

@media (min-width: 1200px) {
    .app-nav {
        display: flex;
        align-items: center;
        margin-left: auto;
    }

    .app-nav__list {
        margin: 0;
        padding: 0;
        display: flex;
        list-style: none;
        align-items: center;
        gap: 0;
        /* Original used padding for spacing, not gap */
    }

    .app-nav__link {
        color: var(--color-primary);
        padding: 18px 15px;
        /* Match original padding */
        font-size: 16px;
        font-family: var(--font-family-base);
        font-weight: 400;
        /* Match original weight */
        text-decoration: none;
        transition: 0.3s;
        white-space: nowrap;
        display: flex;
        align-items: center;
        justify-content: space-between;
        /* Match original flex property */
    }

    /* Last link should have no right padding to align perfectly with edge */
    .app-nav__list li:last-child .app-nav__link {
        padding-right: 0;
    }

    .app-nav__link:hover,
    .app-nav__link--active {
        color: var(--color-accent);
    }

    /* Dropdown Logic (Hover) */
    .app-nav__item--dropdown {
        position: relative;
    }

    .app-nav__dropdown {
        position: absolute;
        top: 100%;
        left: 0;
        background: var(--color-bg-surface);
        min-width: 200px;
        padding: 10px 0;
        border-radius: 4px;
        box-shadow: 0px 0px 30px rgba(0, 0, 0, 0.1);
        opacity: 0;
        visibility: hidden;
        transform: translateY(10px);
        transition: 0.3s;
        list-style: none;
        z-index: 99;
    }

    .app-nav__item--dropdown:hover .app-nav__dropdown {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .app-nav__dropdown a {
        display: block;
        padding: 10px 20px;
        color: var(--color-primary);
        text-decoration: none;
        font-size: 15px;
        transition: 0.2s;
    }

    .app-nav__dropdown a:hover {
        color: var(--color-accent);
    }
}

/* Actions Group - sits next to nav on the right */
.app-header__actions {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-left: var(--space-lg);
}

/* Call to Action Button */
.app-header__cta {
    background: var(--color-accent);
    color: var(--color-text-light);
    font-size: 14px;
    padding: 8px 25px;
    /* margin-left: 30px;  Removed margin, handled by gap */
    border-radius: 50px;
    text-decoration: none;
    font-weight: 500;
    transition: 0.3s;
    display: none;
    /* Hidden on small mobile */
}

@media (min-width: 480px) {
    .app-header__cta {
        display: inline-block;
    }
}

.app-header__cta:hover {
    background: color-mix(in srgb, var(--color-accent), transparent 15%);
    color: var(--color-text-light);
}

/* Mobile Toggle (button for accessibility) */
.app-header__mobile-toggle {
    font-size: 28px;
    cursor: pointer;
    display: block;
    color: var(--color-primary);
    background: none;
    border: none;
    padding: var(--space-sm);
    line-height: 1;
}

.app-header__mobile-toggle i {
    display: block;
}

@media (min-width: 1200px) {
    .app-header__mobile-toggle {
        display: none;
    }
}

/* Mobile nav: lock body scroll when overlay is open */
@media (max-width: 1199px) {
    body.mobile-nav-active {
        overflow: hidden;
        touch-action: none;
        position: fixed;
        width: 100%;
        left: 0;
        right: 0;
    }
}

/* Mobile nav: full-screen overlay when open (below header) */
@media (max-width: 1199px) {
    body.mobile-nav-active .app-nav {
        display: flex;
        position: fixed;
        inset: 0;
        top: var(--header-height, 80px);
        background: var(--color-bg-body);
        z-index: 996;
        flex-direction: column;
        justify-content: flex-start;
        align-items: stretch;
        padding: var(--space-xl);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    }

    body.mobile-nav-active .app-nav__list {
        display: flex;
        flex-direction: column;
        list-style: none;
        margin: 0;
        padding: 0;
        gap: 0;
    }

    body.mobile-nav-active .app-nav__list li {
        border-bottom: 1px solid color-mix(in srgb, var(--color-primary), transparent 90%);
    }

    body.mobile-nav-active .app-nav__list li:last-child {
        border-bottom: none;
    }

    body.mobile-nav-active .app-nav__link {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 18px 0;
        color: var(--color-primary);
        font-size: 17px;
        text-decoration: none;
        min-height: 52px;
    }

    body.mobile-nav-active .app-nav__link:hover,
    body.mobile-nav-active .app-nav__link.active {
        color: var(--color-accent);
    }

    /* Resources row: chevron rotates when dropdown open */
    body.mobile-nav-active .app-nav__item--dropdown .toggle-dropdown {
        transition: transform 0.25s ease;
    }

    body.mobile-nav-active .app-nav__item--dropdown .app-nav__link.dropdown-open .toggle-dropdown {
        transform: rotate(180deg);
    }

    body.mobile-nav-active .app-nav__dropdown {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: color-mix(in srgb, var(--color-primary), transparent 96%);
        padding: 0 0 0 var(--space-lg);
        margin-bottom: var(--space-md);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

    body.mobile-nav-active .app-nav__dropdown.dropdown-active {
        max-height: 200px;
        padding: var(--space-sm) 0 var(--space-sm) var(--space-lg);
    }

    body.mobile-nav-active .app-nav__dropdown a {
        padding: 12px 0;
        font-size: 15px;
    }
}

/* Scrolled State */
.scrolled .app-header {
    box-shadow: 0px 0 18px rgba(0, 0, 0, 0.1);
}

/* Transparent Header for Index Page */
.index-page .app-header {
    background-color: transparent;
}

.index-page.scrolled .app-header {
    background-color: var(--color-bg-body);
}